Automobile heater



all.

May 19, 1925 -Ahroin in the county of Summit and Patented May i9, ttfZiEii,

.Applicziiion nieu. lune 23, 1923: Serial No. 6475274.

lie it known that l. CARL SLoor, a citizen of the `linited States, and a resident ot Stute ot' Ohio. have invented certain new und use- `t'ul lniproveinents in 'i'utoinohile Heaters., of which the Jfollowing is a full, clean :ind exact description.

My invention relates to automohiie heaters. und one ot the objects thereof is to provide a heater of this character `which utilizcsv the waste, gases 'from the engine exhaust y for the useful purpose, of heating' the ear.

Another object of the invention is provide a heater ot' this character which will not only develop the required amount 'ot heat at all times, but also will evenly distrihutc, `the heut over e relatively largo ,fn-ein Other objects und advantages oi? the invention reside in the provision of :i heater of .this character which is extremely simple in construction, and hence, is inexpensive in nuinufncture, and whirh is composed of an unusually small niunher oi oui-tsl und which is; therefore. not likely to zet out ot' ordern vus is the case With complicated structures.

Other and further objects and advantages o1" the invention will lie-apparent from the following detailed description when tal-:en in connection with the accompanying druivings. in which:

Figure 1 is a perspective View oi' coinplete apparatus. pin-ts heine' hrohen nivey to clearly show the interior construction; and

Figure 2 is a detail View of the. spiral hatiie. i

Referring to the drawings mereifin detail, numeral 1 indicates the floor of an automobile which is provided 'with a suitzihle opening indicated by numera 2. 'A perforated plate 3 of any desired construction is fitted over the opeiiingniind arranged hollow the opening' is the outer easing;i t ot the heater.

l will irst descrih'e he means; for supplying to the heater the a' to he heated, und then the ineens toi' heatingr the oir.

As previously' eluted. the outer casinp; or pan is indicated by numeral d, and iirianged -ivithin und spaced itherei't'roni is a second eusine' or pun indicated oy ninneriil 5. The inner pan or cosine; muy he si'uiced iii-oni 'the outer pan or casing' hy :iny eosin-id construcrion, hutl l prefer that. the spacing; he eccomplished hy stamping or otherwise 'toriniug on the inner pan u series ot corrugutions indicated by numeral ti. The bottom of inner pun is provided along its center line with u slot i". or equivalent means, for permitting the air to rise from thespace hctuecn the tivo pans into the interior o the @i inner pan. e

rlheopei'ution of the air supplying` meiins ivill he oliviousffrom the foregoing descri tion. The cool air is drawn downwardly loctu'een the Walls of the two casings or puns, :ind then passes upwardly through the loottoxn ot' theinner pan into the interior thereo't where it comes into direct Contact with the heating means g. and it;v 'will be understood, of course, that the nir receives e, pretti liniinury heating: while ii is being drawn through the space between the two pans its; we;vv to the interior of the-inner pun.v

The engine exhaust pipe is intimated hy numeral S, and operativeiy aesocieted "with W this exhaust pipe is any desired type of valve il for f-ihuntingr all or av portion of the ett;- liuust grises to the heater. For conveying i the exhaust rases from the Valve to the heater l nrcterahly provide e flexible tuhe 10, 3W rind the end oi" this tubing' lis connected with :im elhow 'lL which in turn is connected to ai cylindrical tuhc l2. The exhaust gases ipass through the length of the cylindrical tuhc 12 und pass out, the opposite end there- @il ot through the pipe 13.

ln order kto retard the passage ot the. grises 'through 'the tuhe und thus givel ample time for 'the gases to give oil their heatqv mount, in the tilhf'en. spiral hiiiie 14. shown Ju in detail in vFigure 2. By providing' :i hottie of this character the giises'are caused to 'triivei through a loup; and cireiiitous course and are thus given :imple time to give otlE1 their heu-t; hut, in addition to' this function, 5 the grises hy heine1 forced to travel round und round in the tuhe evenly heat the sinne von 'all sides. und obviously this results in u much greater ahsoiption ot heut. Vielded to. or cost'. integral with, the tithe 12 is a im ,series of ltins; i5, 'the function of the fins,-

heingx to asi-t t in rapidly radiatingr the heat nhsorhed from the. ivnisteifases.

The operation of' the apparatus will lie cieurly understood from the, oixiglfoing` deim script/ion. `When it is desired to heat the cnr the 'volvo 9 is opened to the desired ervtent, therehy allowing' :i portion or all of the exhaust gases to. .he Ydelivered to the cylindrical tuhefl/ "",il'icf'fsiiyriil haillc l/l causes the gascs'ltdfollo/iti "u ion-,9; and cir-- Cuitous course thereh f erinittin the heet. i 7 i FWB 0f the rases in he absorbed evenly throughout the entire body ef the cylindrical tube.'

,""have Vdescribed what new believe te herbe best emberhmeny of the invention, but l de ne? wish te be understood thereby limitingr iuysell' er the scope of The invention, as iuany rhaugres and inecliicatiens may be made witheu departing- 'from the spiric of ihe invention: all such l aim te include in the srepe ei the appended claims.

What l claim as new aud desire te secure by Letters Patent' is:

1. n auteumbih` heater, iurludingr a deuble casing' having' spared walls. means for drawing air through the space between the walls. and into the interior of the inner eas ing, a tubular member arranged Within the inner casing, means for CausingY the exhaust gases te pass through the ubular member, and means arranged Within he tubular member to cause the gases te travel through a spiral path.

2. An automobile heater, inrludiup a flouble casing having spaced walls`r means Fmdrawing air through the space between the walls and inte the interior of the inner casing, a tubular member arranged wif'hin ihr. inner easing. radiating fins carried by the tubular member and supporting the saine. a spiral bafle centrally arranged in the tubu lar member` and means for causing' the exhaust `rases te pass through the tubular ineuiber.

CARL SLOOP. 

